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1Settling characteristics of ultrafine iron ore slimes显示文摘The slurry settling characteristics are the most important to design a thickener in process industries. In this work, the iron ore slurry from the screw classifier overflow was used for the settling study. It was observed that the original slurry exhibited a low settling velocity and a turbid supernatant during the settling process. Commercial flocculating agents with anionic, cationic, and nonionic characters were used to improve the settling behavior of suspensions, which were added into the slurry at different ranges of slurry pH values, respectively. The settling results show that the use of flocculants increase the settling rate by several times. Compared with the cationic and non-ionic flocculants, the anionic flocculant is more effective in enhancing the slurry settling rate. The small dose of the anionic flocculant is found to be more effective, but the other flocculants are less effective even at higher dosages. The simulation of an industrial thickener was carried out based on the laboratory settling data, and the appropriate design and selection parameters of the industrial thickener were estimated.Chinthapudi Eswaraiah Surendra Kumar Biswal Barada Kanta Mishra 2012International Journal of Minerals,Metallurgy and Materials2012,19,2:28
2Prognostic factors in patients with advanced cholangiocarcinoma: Role of surgery, chemotherapy and body mass index显示文摘AIM: To study the factors that may affect survival of cholangiocarcinoma in Lebanon. METHODS: A retrospective review of the medical records of 55 patients diagnosed with cholangio- carcinoma at the American University of Beirut between 1990 and 2005 was conducted. Univariate and multivariate analyses were performed to determine the impact of surgery, chemotherapy, body mass index, bilirubin level and other factors on survival. RESULTS: The median survival of all patients was 8.57 mo (0.03-105.2). Univariate analysis showed that low bilirubin level (< 10 mg/dL), radical surgery and chemotherapy administration were significantly associated with better survival (P = 0.012, 0.038 and 0.038, respectively). In subgroup analysis on patients who had no surgery, chemotherapy administration prolonged median survival significantly (17.0 mo vs 3.5 mo, P = 0.001). Multivariate analysis identifiedonly low bilirubin level < 10 mg/dL and chemotherapy administration as independent predictors associated with better survival (P < 0.05). CONCLUSION: Our data show that palliative and postoperative chemotherapy as well as a bilirubin level < 10 mg/dL are independent predictors of a significant increase in survival in patients with cholangiocarcinoma.Mirna H Farhat Ali I Shamseddine Ayman N Tawil Ghina Berjawi Charif Sidani Wael Shamseddeen Kassem A Barada 2008World Journal of Gastroenterology2008,14,20:9
3Effect of mucin production on survival in colorectal cancer:A case-control study显示文摘AIM: To investigate the impact of mucin production on prognosis in colorectal cancer, in terms of overall survival (OS) and time to disease progression (TTP) in patients with mucinous compared to those with non-mucinous colorectal cancer (NMCRC), matched for age, gender, and tumor stage.METHODS: Thirty five patients with mucinous colorectal cancer (MCRC) were matched for age, gender, and tumor stage with 35 controls having NMCRC. OS and TTP were compared among 4 groups divided according to mucin content: group A (50%-75% mucin), group B (75%-100% mucin), group C or controls (< 50% mucin). Group D consisted of all patients with tumors having < 75% mucin (controls and groups A together).RESULTS: Median survival in MCRC and NMCRC groups was 46.2 and 112.9 mo, respectively (P = 0.26). OS in groups A and B was 70.1 and 32.8 mo (P = 0.46), and in groups B and D was 32.8 and 70.1 mo, respectively (P = 0.143). TTP in MCRC and NMCRC was 50.17 and 44.77 mo, respectively (P = 0.795). TTP in groups A, B, and D was 70.1, 24.8, and 65.5 mo, respectively. Twenty-eight percent of patients with MCRC had poorly differentiated adenocarcinoma versus 8.6% in NMCRC patients (P = 0.028).CONCLUSION: MCRC is associated with a non-significant decrease in median survival and TTP, particularlywhen mucin content is > 75% of tumor volume. However, it tends to be more poorly differentiated. A larger study matching for stage and grade is needed.Mirna H Farhat Kassem A Barada Ayman N Tawil Doha M Itani Hassan A Hatoum Ali I Shamseddine 2008World Journal of Gastroenterology2008,14,45:6
4Holographic augmented reality display with conical holographic optical element for wide viewing zone显示文摘In this study, we propose a holographic augmented reality (AR) display with a wide viewing zone realized by using a special-designed reflective optical element. A conical holographic optical element (HOE) is used as such a reflective optical element. This conical HOE was implemented to reconstruct a diverging spherical wave with a wide spread angle. It has a sharp wavelength selectivity by recording it as a volume hologram, enabling augmented reality (AR) representation of real and virtual 3D objects. The quality of the generated spherical wave and the spectral reflectivity of the fabricated conical HOE were investigated. An optical superimposition between real and virtual 3D objects was demonstrated, thereby enhancing the validity of our proposed method. A horizontal viewing zone of 140° and a vertical viewing zone of 30° were experimentally confirmed. The fabrication procedure for the conical HOE is presented, and the calculation method of the computer-generated hologram (CGH) based on Fermat’s principle is explained in detail.Yusuke Sando Kazuo Satoh Daisuke Barada Toyohiko Yatagai 2022Light(Advanced Manufacturing)2022,3,1:4
5Aspirin use for primary prophylaxis: Adverse outcomes in non-variceal upper gastrointestinal bleeding显示文摘AIM: To compare outcomes of patients with nonvariceal upper gastrointestinal bleeding(NVUGIB) taking aspirin for primary prophylaxis to those not taking it.METHODS: Patients not known to have any vascular disease(coronary artery or cerebrovascular disease) who were admitted to the American University of Beirut Medical Center between 1993 and 2010 with NVUGIB were included. The frequencies of in-hospital mortality, re-bleeding, severe bleeding, need for surgery or embolization, and of a composite outcome defined as the occurrence of any of the 4 bleeding related adverse outcomes were compared between patients receiving aspirin and those on no antithrombotics. We also compared frequency of in hospital complications and length of hospital stay between the two groups.RESULTS: Of 357 eligible patients, 94 were on aspirin and 263 patients were on no antithrombotics(controlgroup). Patients in the aspirin group were older, the mean age was 58 years in controls and 67 years in the aspirin group(P < 0.001). Patients in the aspirin group had significantly more co-morbidities, including diabetes mellitus and hypertension [25(27%) vs 31(112%) and44(47%) vs 74(28%) respectively,(P = 0.001)], as well as dyslipidemia [21(22%) vs 16(6%), P < 0.0001).Smoking was more frequent in the aspirin group [34(41%) vs 60(27%), P = 0.02)]. The frequencies of endoscopic therapy and surgery were similar in both groups. Patients who were on aspirin had lower inhospital mortality rates(2.1% vs 13.7%, P = 0.002),shorter hospital stay(4.9 d vs 7 d, P = 0.01), and fewer composite outcomes(10.6% vs 24%, P = 0.01). The frequencies of in-hospital complications and re-bleeding were similar in the two groups.CONCLUSION: Patients who present with NVUGIB while receiving aspirin for primary prophylaxis had fewer adverse outcomes. Thus aspirin may have a protective effect beyond its cardiovascular benefits.Karina M Souk Hani M Tamim Hussein A Abu Daya Don C Rockey Kassem A Barada 2016World Journal of Gastrointestinal Surgery2016,8,7:3
6Revealing Genetic Relationship and Prospecting of Novel Donors Among Upland Rice Genotypes Using qDTY-Linked SSR Markers显示文摘A total of 17 simple sequence repeat(SSR) markers linked to QTLs(qDTYs) governing grain yield under reproductive stage(RS) drought stress were used to assess the genetic relationship and prospecting new donors for q DTYs among 32 popular upland rice genotypes. These SSR markers generated a total of 36 alleles with an average allele count of 2.1 per locus. Polymorphic information content value of the markers ranged from 0.376 to 0.662 with an average value of 0.484. The expected heterozyogosity ranged from 0.381 to 0.632. STRUCTURE analysis divided the 32 genotypes into three sub-populations. Subsequent phenotyping revealed that all the tolerant genotypes were grouped into one sub-population, whereas the moderately tolerant and susceptible genotypes were grouped into separate sub-populations. Phylogenetic tree constructed by the unweighted neighbour-joining method also divided the genotypes into three clusters. The grouping pattern of genotypes into the clusters was similar to that into the STRUCTURE analysis, on the basis of drought tolerance level. The average value of genetic dissimilarity coefficient among the genotypes was observed to be 0.486. Furthermore, by combining genotyping data with phenotyping data, 16 new donors for 6 qDTYs were identified.Mitadru MUKHERJEE Barada PADHY Bharathkumar SRINIVASAN Pradosh MAHADANI Sk Yasin BAKSH Ravindra DONDE Onkar Nath SINGH Lambodar BEHERA Padmini SWAIN Sushanta Kumar DASH 2018Rice science2018,25,6:2
7Characterization of dolochar wastes generated by the sponge iron industry显示文摘Solid wastes generated by the metallurgical industry contribute significantly towards the enhancement of environmental pollution. The handling, utilization, and safe disposal of these solid wastes are major concerns for the world. Dolochar is such a solid waste generated by the sponge iron industry. Investigations were carried out on the physical, mineralogical, and chemical characteristics for the efficient utilization of dolochar. The detailed studies on physico-chemical properties and petrography were carried out by optical microscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). Characterization studies revealed that the dolochar consists of quartz (free as well as locked), free lime, Fe particles, and Ca or Mg and/or Ca+Mg+Fe oxide phases. The washability data of-300 μm dolochar samples indicated that clean coal with 41wt% ash at 18% yield can be produced from dolochar with 78wt% ash. The studies further suggested that the liberation of the dolochar is hard to achieve for clear separation. The dolochar is observed to have high ash fusion temperature and the unburned carbon can be best utilized for power generation.Ranjan Kumar Dwari Danda Srinivas Rao Akhila Kumar Swar Palli Sita Ram Reddy Barada Kanta Mishra 2012International Journal of Minerals,Metallurgy and Materials2012,19,11:2
8Celiac disease in Middle Eastern and North African countries:A new burden?显示文摘Celiac disease(CD) is now recognized as a common disorder among Middle Eastern(ME) and North African(NA) populations.The aim of this review is to assess the available data regarding CD in the ME and NA and to compare this information with that of Western countries.A literature review was performed using the electronic databases PubMed and Medline(1950-2008) as search engines,and 'celiac disease' was used as a Mesh term.The search was limited to ME and NA countries.The prevalence of CD in ME and NA countries among low risk populations is similar to that of Western countries,but is higher in high risk populations such as those with type 1 diabetes.It is underestimated because of lack of clinical suspicion and lack of patient awareness.Clinical presentations in term of gastrointestinal,hematologic,skeletal,and liver manifestations are similar between both populations except for a high prevalence of short stature in some ME and NA countries.Few studies have addressed atypical or silent CD.As in the West,diagnosis is initially made by serological tests and is confirmed by small intestinal biopsies.Gluten-free diet is the main mode of treatment with a higher apparent adherence rate than in the West.Most disease complications result from malabsorption.The disease is strongly associated with HLA DQ2 and to a lesser extent with HLA DQ8 alleles.In conclusion,CD prevalence is underestimated,with little data available about its malignant complications.Disease parameters in the ME and NA are otherwise similar to those in Western countries.Kassem Barada Abbas Bitar Mohamad Abdul-Razak Mokadem Jana Ghazi Hashash Peter Green 2010World Journal of Gastroenterology2010,16,12:2
9Statistical Modeling Studies of Iron Recovery from Red Mud Using Thermal Plasma显示文摘Optimization studies of plasma smelting of red mud were carried out. Reduction of the dried red mud fines was done in an extended arc plasma reactor to recover the pig iron. Lime grit and low ash metallurgical (LAM) coke were used as the flux and reductant, respectively. 2level factorial design was used to study the influence of all parameters on the responses. Response surface modeling was done with the data obtained from statistically designed experiments. Metal recovery at optimum parameters was found to be 79.52%.Swagat S. RATH Archana PANY K. JAYASANKAR Ajit K. MITRA C. SATISH KUMAR Partha S. MUKHERJEE Barada K. MISHRA 2013Plasma Science and Technology2013,15,5:2
10Inflammatory bowel disease in rats:Bacterial and chemical interaction显示文摘AIM: To develop a novel model of colitis in rats, using a combination of iodoacetamide and enteropathogenic E. coli (EPEC), and to elucidate the pathophysiologic processes implicated in the development of ulcerative colitis (UC). METHODS: Male Sprague-Dawley rats (n = 158) were inoculated intrarectally on a weekly basis with 4 different combinations: (a) 1% methylcellulose (MC), (b) 100 μL of 6% iodoacetamide (IA) in 1% MC, (c) 200 μL containing 4 × 108 colony factor units (CFU) of EPEC, and (d) combined treatment of (IA) followed by bacteria (B) after 2 d. Thirty days post treatment, each of the four groups was divided into two subgroups; the inoculation was stopped for one subgroup and the other subgroup continued with biweekly inoculation until the end of the experiment. Colitis was evaluated by the clinical course of the disease, the macroscopic and microscopic alterations, activity of myeloperoxidase (MPO), and by TNF-α gene expression. RESULTS: Findings indicative of UC were seen in the combined treatment (IA + B) as well as the IA conti-nued treatment groups: the animals showed slow rate of increase in body weight, diarrhea, bloody stools, high colonic ulcer score, as well as histological altera- tions characteristic of UC, with an extensive inflamma- tory reaction. During the course of the experiment, the MPO activity was consistently elevated and the TNF-α gene expression was upregulated compared to the control animals. CONCLUSION: The experimental ulcerative colitis model used in the present study resembles, to a great extent, the human disease. It is reproducible with characteristics indicative of chronicity.Inaya Abdallah Hajj Hussein Rania Tohme Kassem Barada Mostafa Hassan Mostafa Jean-Noel Freund Rosalyn A Jurjus Walid Karam Abdo Jurjus 2008World Journal of Gastroenterology2008,14,25:2
11A simulated evolution approach to task matcging and scheduling in heterogeneous computing environments显示文摘Barada H Sait S M Baig N 2002Engineering Applications of Artificial Intelligence2002,15,9:1
12Achieving treatment optimization with Viagra in patients with ED 显示文摘McCullough AR Barada JH Fawzy A 2002Urology2002,60,22:1
13Clinical guidelines panel on erectile dysfunction: summary report on the treatment of organic erectile dysfunction显示文摘Montague DK Barada JH Belker AM 1996J Urol1996,156,6:1
14Mierosatellite DNA identifica- tion and genotyping of Candida albicans from lebanese clinical isolates 显示文摘Barada G Basma R Khalaf RA 2008Mycopathologia2008,165,3:1
15Clinical guidelines panel on erectile dysfunction:summary report on the treatment of organic erectile dysfunction显示文摘Montague DK Barada JH Belker AM 1996J Urol1996,156,6:1
16A randomized single-blind trial of whole versus split-dose polyethylene glycol-electrolyte solution for colonoscopy preparation显示文摘Amer M.A. El Sayed Zeina A. Kanafani Fadi H. Mourad Assaad M. Soweid Kassem A. Barada Clarisse S. Adorian Walid A. Nasreddine Ala I. Sharara 2003Gastrointestinal Endoscopy2003,,1:1
17Testicular salvage and age-related delay in the presentation of testicular torsion显示文摘Barada J H Weingarten J L Cromie W J 1989J Urol1989,142,3:1
18Advanced glycation endproducts in peripheral nerve in Type 2 diabetes with neuropathy显示文摘Misur I Zarkovic K Barada A 2004Acta Diabetol2004,41,4:1
19Advanced glycation endprod- ucts in peripheral nerve in type 2 diabetes with neuropathy 显示文摘Misur I Zarkovic K Barada A 2004Acta Diabetol2004,41,4:1
20A randomized single-blind trial of standard diet versus fiber-free diet with polyethylene glycol electrolyte solution for colonoscopy preparation显示文摘A. Soweid A. Kobeissy F. Jamali M. El-Tarchichi A. Skoury H. Abdul-Baki L. El-Zahabi A. El-Sayyed K. Barada A. Sharara F. Mourad A. Arabi 2010Endoscopy2010,,08:1
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